Vulnerability Information
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Vulnerability Title
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Vulnerability Description
JBL Go 2 devices through 2021-08-09 allow remote attackers to recover speech signals from an LED on the device, via a telescope and an electro-optical sensor, aka a "Glowworm" attack. The power indicator LED of the speakers is connected directly to the power line, as a result, the intensity of a device's power indicator LED is correlative to the power consumption. The sound played by the speakers affects their power consumption and as a result is also correlative to the light intensity of the LEDs. By analyzing measurements obtained from an electro-optical sensor directed at the power indicator LEDs of the speakers, we can recover the sound played by them.
CVSS Information
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Vulnerability Type
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Vulnerability Title
JBL Go 2 安全漏洞
Vulnerability Description
JBL Go 2是日本JBL公司的一个全功能的便携式防水蓝牙音箱。 JBL Go 2 2021-08-09及之前版本存在安全漏洞。远程攻击者通过望远镜和光电传感器（也称为“萤火虫”攻击）从设备上的LED恢复语音信号。扬声器的电源指示LED直接连接到电源线，因此，设备电源指示LED的强度与功耗相关。扬声器播放的声音会影响其功耗，因此也与LED的光强度相关。通过分析从指向扬声器电源指示灯LED的光电传感器获得的测量值，可以恢复扬声器播放的声音
CVSS Information
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Vulnerability Type
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